Beginnings...
Merge remote branch 'upstream/master' into namespace-tutorial
Interim
Further additions/changes
Settled on a tutorial example.
First pass complete.
Contents page entry added.
Merge remote branch 'upstream/master' into namespace-tutorial
Moved from namespace triggers to family triggers
Initial introduction of the trigger types used added.
Merge pull request #540 from arjclark/namespace-tutorial

#487 - Namespace tutorial. Closes #487.